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[SCSI] fnic: remove redundant BUG_ONs and fix checks on unsigned

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The shost sg tablesize is set to FNIC_MAX_SG_DESC_CNT and fnic uses
scsi_dma_map, so both BUG_ONs can be removed.

scsi_dma_map may return -ENOMEM, sg_count should be int to catch that.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
Roel Kluin 2009-06-23 01:06:40 +02:00 committed by James Bottomley
parent e08afeb7e6
commit 87a2d34b03
1 changed files with 2 additions and 5 deletions
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7
drivers/scsi/fnic/fnic_scsi.c
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@ -245,7 +245,7 @@ static inline int fnic_queue_wq_copy_desc(struct fnic *fnic,
struct vnic_wq_copy *wq, struct vnic_wq_copy *wq,
struct fnic_io_req *io_req, struct fnic_io_req *io_req,
struct scsi_cmnd *sc, struct scsi_cmnd *sc,
u32 sg_count) int sg_count)
{ {
struct scatterlist *sg; struct scatterlist *sg;
struct fc_rport *rport = starget_to_rport(scsi_target(sc->device)); struct fc_rport *rport = starget_to_rport(scsi_target(sc->device));
@ -260,9 +260,6 @@ static inline int fnic_queue_wq_copy_desc(struct fnic *fnic,
char msg[2]; char msg[2];
if (sg_count) { if (sg_count) {
BUG_ON(sg_count < 0);
BUG_ON(sg_count > FNIC_MAX_SG_DESC_CNT);
/* For each SGE, create a device desc entry */ /* For each SGE, create a device desc entry */
desc = io_req->sgl_list; desc = io_req->sgl_list;
for_each_sg(scsi_sglist(sc), sg, sg_count, i) { for_each_sg(scsi_sglist(sc), sg, sg_count, i) {
@ -344,7 +341,7 @@ int fnic_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *))
struct fnic *fnic; struct fnic *fnic;
struct vnic_wq_copy *wq; struct vnic_wq_copy *wq;
int ret; int ret;
u32 sg_count; int sg_count;
unsigned long flags; unsigned long flags;
unsigned long ptr; unsigned long ptr;